Tuesday, June 22, 2010

Windows XP data recovery from unbootable system

Windows XP is the most used and highest earning operating system for Microsoft. Easy-to-use, hardware compatibility etc are some of the features which make it so popular among users. However, there may be some start-up problems with the system. Such problems can occur due to power cuts, incompatible hardware, virus attacks etc.

In such cases, in-house methods should be tried to resolve the problem and start the system. And if you are not able solve the issue then you should use a third-party Windows data recovery software to retrieve data..

Here I consider that my readers would have used a bridged PCI (Peripheral Component Interconnect) display adapter. You have inserted the display adapter in a PCI slot and upgraded the operating system to Windows XP Service Pack 2. When you restart the system, it fails to do so. An error message is displayed, that is:

“*** Stop 0x000007B (parameter1, parameter2, parameter3, parameter4)
INACCESSIBLE_BOOT_DEVICE”

Cause:

The root cause of this error message is that there is an add-on PCI adapter on your computer that has an integrated PCI-to-PCI bridge and graphics adapter. Because of this, the ISA Enable and VGA Enable bridge control registers are not correctly set. And, if the boot controller is assigned the incorrect PCI resources, then the active system drive becomes inaccessible. And hence, the system is unable to boot.

Resolution:

To resolve this problem, you can perform the following steps:
Remove Windows XP SP 2 using the Recovery Console.
Install the 890463 hotfix.
Reinstall Windows XP SP 2.

You will able to access and boot the Windows system using the aforementioned steps. However, there is very big possibility that you may lose the data during this process as it involves installing the operating system. Therefore, to recover Windows files safely you should use a third-party Windows recovery software. Such read-only tools enable you to recover Windows data without overwriting the original data.

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